Radiator



, eases ea. 2, 19 2s.

rarest aria- WAL'IER M DANN, or wILKiNsBUne, rnnnsvrvanm, essrenoa To WESTING- HOUSE ELECTRIC & MANUFACTURING COMPANY, A oonroaerron or ran-resyn- VANIA. 1

' RADIATOR.

Application filed Jan ary 8, 1921. Serial at. 435,958.

My invention relates to heat-dissipating de- 7 vices and it has particular relation to apparatus of the above-designated character adapted to be utilized in connection with electrical or other apparatus normally immersed within a cooling fluid.

More specifically, my invention relates to means for cooling the oil orother cooling fluid.

that is employed in transformers or to other I vide a radiator, of the character described,

havinga relatively large area of cooling surface, in comparison withthe space occupied thereby. v

A further object is to provide a device of the character described that may be quickly and easily constructed from suitably formed sheetmetal elements and one that will be of strong and rugged construction.

Heretofore, in structures of this general character, the radiator units were either arranged separately around the. perimeter of a transformer tank or they were arranged collectively in groups upon the tank, each group being provided with a common connection which communicateswith the tank.

In the former of these structrues,the sides of the tank were necessarily provided with a large number of spaced apertures arranged in rows and with which the respective radiator units communicated; In such structure, each of the radiators required several. connecting or coupling memberswhichwere senarately attached to the side of a'transformer tank;

It was, therefore, necessary to so space the various radiator units from each other as to render the coupling members easily accessible in assembling or disassembling the apparatus. By thus spacing the radiators, there was not only considerable valuable unoccupied space which was greater than was necessary to furnish the required circulation of air between the units, but only a limited and insufficient number of radiators could be so mounted upon a tank.

In the latter of the two general methods of arranging the radiator units, the radiators were'grouped to communicate with upper and lower apertures in the walls the tank by means of common header members arranged at the upper and lower extremities of the several groups of units. The header members, while, generally simplifying the radiator structure by reducing the number of aper-Y tures required in thetank and the coacting coupling members, were located directly above and below the units of each group and materially interfered with the vertical circulation of the air between the same.

Moreover, in both of these general structures, the units of the respectiveradiators were not braced against lateral pressure, and

frequently became displaced thereby causing leaks to develop.

According to my invention, Ifprovide a radiator comprising a plurality of separate unlts'which communicate with upper. and

lower header members so arranged at one side of the group of units as not to interfere with the circulationof air therebetween.

Furthermore, in my structure, the various parts are preferably constructed of previously formed sheet metal which are welded together to constitute a comparatively lightbut strong and rugged structure the component parts of which are adequately braced against lateral pressure. H

In the accompanying drawing, Fig. 1 is a front elevational view of a radiatorconstructed in accordance with vmy invention. V v

F ig.'2 is a top plan view of thestructure shown in Fig. 1. Y I, v

' Fig. 8 is an end elevational view of the structure shown in Figs. 1 and 2, the central portions of the radiator units being broken away. Fig. 4 is a fragmentary vertical sectional view, on a large scale, online IV1V 0f Fig. 2, and which illustrates the-method of welding the radiator units to the offsetheader are preferably formed of a plurality of relai tively flat complementary dish-shape-members or side walls 2 provlded with flanges 3 which extend around the perimeters thereof.

The members-2 are also provided with depressed projections or channel portions l adjacent to each of the ends thereof. Y

When a plurality of the'members 2 are arranged in side-by-side relation and their flanges 3 welded. or otherwise'suitably secured together, they constitute a relatively wide and flat envelop having upper and lower tubular projections 5 extending in the same direction therefrom. 7

Upper and lower header members 6 are of boxlike structure and their various parts are also preferably tlorined of sheetmetal and welded together. The lower portions of the front walls 7 of the header members 6 are preferably inclined inwardly, as indicated at 8, and are provided with a plurality of spaced apertures 9, in which the tubular extensions 5 of the units 1-areadapted to be secured, preferably by welding. ass-indicated at 10. The purpose of disposing the wall 8 at an angle to the vertical is to aid the circulation of the cooling medium therethrough. This is effected by reason of the fact that the cooling medium, in passing from the tubular member 4 and the headerj mernb'er 6,

neednot pass through a 90 angle.

The various units 1 of the radiator thus project outwardly from the header members 6 and may be bound together by means of upper and lower transversely extending bolts 11 and spacing members 12. The side walls 2 of the units 1 may also be provided with longitudinal corrugations or depressions 13 which perform the double function'of both stiffening or reinforcing the members and.

erably provided with oppositely extending ear. members 18 which are secured to the side wall of the transformer tank by means of bolts 19.

- By this construction, it will be apparent that the air may circulate vertically between the respective units of the radiator and over the entire surfaces thereof. J The respective header members are thus so ofi'set as to eliminate the dead-air spaces that have heretofore occurred in the vicinityrof the upper and lower extremities of the radiator units.

I claim as my invention:

1. A radiator comprising a plurality of cooling elements each comprising a pair of complementary sections provided with out wardly extending channel portions, said channel portions being adapted to form tubular projections when said sections are secured together, and a plurality of header members communicating with said projections and offset with respect to said cooling elements, whereby said header members are substan tially withoutthe area of vertical projection of said cooling elements. V

2. A radiator comprising a plurality of cooling elements, each of said elements comprising a pair of complementary sections provided with outwardly xtending channel pertions, said. channel portions being adapted to form tubular projectionswhen said sections are secured together, and a plurality of header members communicating with said projections and arranged at the side of said cooling elements, in such manner that the flow of an vertically therebetween is substantially un obstructed.

' 3. A radiator comprising a group of relaof complen'ientary sections of substantially dish shape provided with outwardlyextending channel port ons adapted to co-operate with each other to form tubular pro ections wh n said sections are secured together, and.

a plurality of box-lilze header members arranged adjacent to the ends of said units, but substantially without the area of vertical projection of said units and communicating with said tubular projections.

In testimony whereof, I have hereunto subscribed my name this 5th day of January,

1921. WALTER M. DANN. 

